<template>
    <div>
        <div class="search">
        <input v-model="keyWorld" class="search-input" type="text" placeholder="输入城市名或拼音"/>
        </div>
        <div class="search-content" ref="search" v-show="keyWorld">
            <ul>
                <li class="search-item border-bottom" v-for="item of list" :key="item.index" @click="handleCityClick(item.name)">{{item.name}}</li>
                <li class="search-item border-bottom" v-show="!list.length">没有找到匹配数据</li>
            </ul>
        </div>
    </div>
</template>

<script>
import Bscroll from 'better-scroll'
import {mapMutations} from 'vuex'
export default {
    name:'CitySearch',
    props:{
        cities:Object
    },
    data(){
        return{
            keyWorld:'',
            list:[],
            timer:null
        }
    },
    methods:{
        handleCityClick(city){
            this.changeCity(city)
            this.$router.push('/')
        },
        ...mapMutations(['changeCity'])
    },
    watch:{
        keyWorld(){
            if(this.timer){
                clearTimeout(this.timer)
            }
            if(!this.keyWorld){
                this.list = []
                return
            }
            this.timer = setTimeout(()=>{
                const result = []
                for (let i in this.cities){
                    this.cities[i].forEach(value => {
                        if(value.spell.indexOf(this.keyWorld)>-1 || value.name.indexOf(this.keyWorld)>-1){
                            result.push(value)
                        }
                    });
                }
                this.list = result
            },100)
        }
    },
    mounted(){
        this.scroll = new Bscroll(this.$refs.search,{click:true})
    }
}
</script>

<style lang="stylus" scoped>
    @import '~styles/varibles.styl';
    .search
        height 0.72rem
        padding:.1rem
        background: $bgColor
        .search-input
            box-sizing: border-box
            height: .62rem
            line-height: .62rem
            width:100%
            border-radius: .06rem
            color:#666
            padding:0 .1rem 0 0.1rem
            text-align: center
    .search-content
        overflow: hidden
        position: absolute
        top 1.58rem
        left: 0
        right 0
        bottom: 0
        z-index: 1
        background: #eee
        .search-item   
            line-height: .62rem
            padding-left: .2rem
            background: #fff
            color:#666
</style>